jfruh writes: "Cynthia Navarro starts her sessions training police to mine social media in dramatic fashion: by quickly finding data about the officers themselves. She also provides information about who's where online — for instance, younger suspects will probably be focused on Twitter, while older folks are on Twitter or even MySpace. It's all part of a drive to teach even nontechinical police officers at small and midsized departments how to use social media to track suspects."